Area Code 317-599 located in INDIANAPOLIS, MARION, IN, more detail is as below. Place NPA (Numbering Plan Area) : 317 NXX (Local Number Prefix) : 599 City : INDIANAPOLIS County : MARION State : IN (Indiana) NXX Use Type : Landline NXX Intro Version : 5/4/2011 FIPS (Federal Information Processing Standards) : 18097 LATA (Local Access Transport Area) : 336 Rate Center : INDIANAPLS ZIP Code Count : 0 ZIP Code Frequency : 0 ZIP Code : 46228 Other Information NPANXX : 317599 County Population : 0 MSA CBSA (Core Based Statistical Area) : Indianapolis-Carmel, IN MSA CBSA Code (Core Based Statistical Area) : 26900 Time Zone : Eastern (GMT -05:00) Observes Daylight Saving Time : Yes Company : CINERGY METRONET, INC. - IN OCN (Operating Company Number) : 970C Coverage Area Name : INDIANAPOLIS Latitude : 39.8445 Longitude : -86.2558 ‹ previous : 317-598 next › : 317-600 Telephone Number List 317-599-0000 ~ 317-599-9999